ISO 6677:1983 PDF
Hexafluorosilicic acid for industrial use — Determination of available fluorine content — Potentiometric method after distillation
Open preview (PDF)Hexafluorosilicic acid for industrial use — Determination of available fluorine content — Potentiometric method after distillationTitle (English):
ISO 6677:1983
Hexafluorosilicic acid for industrial use — Determination of available fluorine content — Potentiometric method after distillation
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 5
- Publication date:
- May 1, 1983
- Edition:
- ISO IS 6677 edition 1 version 1
- ICS:
- 71.060.30
Description (English):
Covers a method consisting in separating the fluorine from a test portion by distillation in the presence of perchloric acid, followed by potentiometric titration of the distillate with lanthanum nitrate solution using a fluoride ion-selective electrode. Is applicable to products having total available fluorine contents in the range between 15 and 35 % (m/m).
Technical details
- Technical committee
- ISO/TC 47 - Chemistry
- SKU
- ISO 6677:1983
